A girl that is the most beautiful girl ever. She is defined as one with curly hair, and incredibly talented academically and musically. It is very easy to fall in love with her, beware. She is characterized as funny, smart, and beautiful. So far there is only one known in existence, and always will. Do not let her get on your bad side; it will not end well, based on observations. Studies show that she is able to blend into crowds easily to those who do not know her but stick out very much for those who like her.

Friend1: Woah! She sticks out in crowds. It's too easy to see her.
Friend2: Well, that must be a Marin. I can't see her too well. Eye doctor?

v. To intentionally waste something for the sake of convenience. Exclusively done by young adults from Marin County, California, who squandered so much of their parents' money while growing up that it's lost most of its meaning. Marin is most often used in the phrase, "Just Marin it."

Example 1
Alex: "Dude, I called you seeing if you wanted to get In-N-Out, but I just ordered a few minutes ago."
Sam: "So? Just Marin your Double-Double and order another when I get there."

Example 2
"I ordered a digital version of Diablo 3 from Blizzard's website but my school's firewall won't let me download it because the file is too big. I think I'll just Marin it and buy another copy at Best Buy."